sub‧hu‧man /sʌbˈhjuːmən $ -ˈhjuː-, -ˈjuː-/ adjective
[Word Family: noun: human, humanism, humanity ≠ inhumanity, humanitarian, humanitarianism, humankind, humanoid; adjective: human ≠ inhuman, superhuman, subhuman, humane ≠ inhumane, humanitarian, humanoid; adverb: humanly ≠ inhumanly, humanely ≠ inhumanely; verb: humanize]

1. not having all the qualities a normal human being has:
The enemy was regarded as subhuman.

2. subhuman conditions are very bad or cruel ⇒ inhuman:
The refugees were living a subhuman existence.

[TahlilGaran] Dictionary of Contemporary English ▲